<template>
  <view>
    <view class="search-box">
      <!-- 自定义搜索组件 -->
       <my-search @searchClick="gotoSearch"></my-search>
    </view>
    
    <!-- 轮播图 -->
    <swiper :indicator-dots="true" indicator-active-color="#fff" :autoplay="true" :interval="3000" :duration="1000"
      :circular="true">
      <swiper-item v-for="(item,i) in swiperList" :key="i">
        <navigator class="swiper-item" :url="'/subpkg/goods_detail/goods_detail?goods_id='+ item.goods_id ">
          <image :src="item.image_src"></image>
        </navigator>
      </swiper-item>

    </swiper>

    <!-- 分类导航ui -->
    <view class="nav-list">
      <view class="nav-item" v-for="(item,i) in navList" :key="i" @click="navClickHandler(item)">
        <image class="nav-img" :src="item.image_src"></image>
      </view>
    </view>

    <!-- 楼层区域 -->
    <view class="floor-list">
      <view class="floor-item" v-for="(item,i) in floorList" :key="i">
        <image class="floor-title" :src="item.floor_title.image_src"></image>

        <!-- 楼层图片区域 -->
        <view class="floor-img-box">
          <navigator class="left-img-box" :url="item.product_list[0].url">
            <image :src="item.product_list[0].image_src" :style="{width:item.product_list[0].image_width+'rpx'}" mode="widthFix"></image>
          </navigator>
          <!-- 右侧4个图片 -->
         <view  class="right-img-box">
           <navigator v-for="(item2,i2) in item.product_list" :key="i2" v-if="i2 !==0" :url="item2.url">
             <image :src="item2.image_src" mode="widthFix" :style="{
                width:item2.image_width + 'rpx'
              }"></image>
           </navigator>
         </view>
        </view>
      </view>

    </view>
  </view>
</template>

<script>
 // 导入自己封装的 mixin 模块
 import badgeMix from '@/mixins/tabbar-badge.js'
 export default {
    // 将 badgeMix 混入到当前的页面中进行使用
    mixins:[badgeMix],
    data() {
      return {
        // 轮播图数据
        swiperList: [],
        // 分类导航数据
        navList: [],
        // 楼层数据
        floorList: []
      };
    },
    onLoad() {
      this.getSwiperList()
      this.getNavList()
      this.getFloorList()
    },
    methods: {
      // 获取轮播图数据
      async getSwiperList() {
        // 发起请求
        const {
          data: res
        } = await uni.$http.get('/api/public/v1/home/swiperdata')
        console.log(res)
        // 请求失败
        if (res.meta.status !== 200) {
          return uni.$showMsg()
        }

        // 请求成功
        this.swiperList = res.message
        // uni.$showMsg('数据请求成功')
        // console.log(this)
      },

      // 获取分类导航数据
      async getNavList() {
        const {
          data: res
        } = await uni.$http.get('/api/public/v1/home/catitems')
        console.log(res)

        // 请求失败
        if (res.meta.status !== 200) {
          return uni.$showMsg()
        }
        // 请求成功
        this.navList = res.message
      },

      // 导航跳转
      navClickHandler(item) {
        if (item.name === '分类') {
          uni.switchTab({
            url: '/pages/cate/cate'
          })
        }
      },

      // 获取楼层数据
      async getFloorList() {
        const {
          data: res
        } = await uni.$http.get('/api/public/v1/home/floordata')
        console.log(res)

        if (res.meta.status !== 200) {
          return uni.$showMsg()
        }
        // 通过双重forEach 循环处理url 
        res.message.forEach(floor =>{
          floor.product_list.forEach(nav =>{
            nav.url='/subpkg/goods_list/goods_list?' + nav.navigator_url.split('?')[1]
          })
        })
        this.floorList = res.message
      },
    // 跳转到搜索页面
      gotoSearch() {
        uni.navigateTo({
          url:'/subpkg/search/search'
        })
      }
    }
  }
</script>

<style lang="scss">
  swiper {
    height: 330rpx;

    .swiper-item,
    image {
      width: 100%;
      height: 100%;
    }
  }

  .nav-list {
    display: flex;
    justify-content: space-around;
    margin: 15rpx 0;

    .nav-img {
      width: 128rpx;
      height: 140rpx;
    }
  }

  .floor-list {
    .floor-title {
      height: 60rpx;
      width: 100%;
      display: flex;
    }

    .floor-img-box {
      display: flex;
      margin-left: 15rpx;

      .right-img-box {
        display: flex;
        flex-wrap: wrap;
        justify-content: space-around;
      }
    }

  }
  
  .search-box {
   // 设置定位效果为“吸顶”
     position: sticky;
     // 吸顶的“位置”
     top: 0;
    
     // 提高层级，防止被轮播图覆盖
     z-index: 999;
  }
</style>
